A rescue service vehicle capable of carrying out scissor lift lifting

Abstract

The present invention discloses a rescue service vehicle capable of realizing scissor lift lifting, comprising a vehicle body (1), a closed vehicle body (2) provided at the rear of the vehicle body (1), and characterized in that: a slide (3) is slidably connected in the closed vehicle body (2), a slide motor (4) is provided in the closed vehicle body (2), a working end of the slide motor (4) is connected to a driving shaft (5) rotatably supported at the front end of the closed vehicle body (2), driving teeth (6) are provided at both ends of the driving shaft (5), a pair of passive teeth (7) respectively matched with the two driving teeth (6) are rotatably supported at the rear end of the closed vehicle body (2), and the mutually matched driving teeth (6) and passive teeth (7) are connected by a slide drive chain (8), and the slide drive chain (8) is connected to the slide (3) through a connecting member (9).

Description

Technical Field

[0001] The present invention relates to the field of vehicle rescue services, in particular to a rescue service vehicle capable of carrying out scissor lift lifting. Background Art

[0002] With the annual increase in the number of cars, the demand for non-accident rescue is growing rapidly. At the same time, as the average age of cars increases, the demand for road rescue is also destined to grow further. Traditional rescue vehicles are basically tow trucks, and their rescue process is to tow the accident or faulty vehicle back to the 4S store or repair shop for repair. This method requires a lot of time on the road. Therefore, some vehicle rescue personnel will repair the vehicle on site. However, there is no dedicated equipment at the accident or fault scene, so they can only do some simple processing and cannot perform further repair operations, which has great limitations.

[0003] To solve these problems, some rescue vehicles now have built-in scissor lifts in their compartments. By using the scissor lift to jack up the faulty vehicle, rescue personnel can then perform maintenance on the vehicle chassis. However, the scissor lift is large in size and mass. To transport it from the compartment to the ground, either a ramp is manually set up at the rear door of the compartment, and the operator pulls the scissor lift from the ramp to the ground, or a small crane or other lifting equipment is directly set up in the compartment to lift the scissor lift.

[0004] However, both of the above methods have certain problems. The first method requires a lot of manpower and has low work efficiency. In addition, there are certain safety hazards in the process of setting up the ramp and pulling the scissor lift. In the second method, the traditional lifting equipment requires a large installation space and operating space, which occupies the limited space in the car and makes many maintenance equipment unable to be carried.

[0005] Therefore, a method or device that can solve the above problems is needed. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned deficiencies in the prior art and proposes a rescue service vehicle which has a simple structure, ingenious design, high degree of automation, small space occupation and high working efficiency and can realize scissor lift lifting.

[0007] The technical solution of the present invention is: a rescue service vehicle capable of realizing scissor lift lifting, comprising a vehicle body 1, a closed car body 2 provided at the rear of the vehicle body 1, characterized in that: a slide 3 is slidably connected in the closed car body 2, a slide motor 4 is provided in the closed car body 2, a working end of the slide motor 4 is connected to a driving shaft 5 rotatably supported at the front end of the closed car body 2, driving teeth 6 are provided at both ends of the driving shaft 5, and a pair of driven teeth 7 respectively matching the two driving teeth 6 are rotatably supported at the rear end of the closed car body 2, and the mutually matching driving teeth 6 and driven teeth 7 are connected by a slide drive chain 8, and the slide drive chain 8 is connected to the slide 3 through a connecting member 9.

[0008] The slide 3 is provided with a lifting motor 10, and the working shaft of the lifting motor 10 is provided with a first lifting tooth 11 and a second lifting tooth 12. The slide 3 is also provided with a pair of symmetrically distributed lifting components, and the lifting component includes a guide housing 13 with a rectangular cross-section, and a first screw 14 and a second screw 15 are rotatably supported in the guide housing 13. A nut block 16 is threadedly connected to the first screw 14 and the second screw 15, and the cross-section of the nut block 16 is also rectangular. The ends of the first screw 14 and the second screw 15 are respectively provided with a first gear 17 and a second gear 18, and the first gear 17 and the second gear 18 are meshed with each other. The end of the first screw 14 is also provided with a screw passive tooth 19. The screw passive teeth 19 in the two lifting assemblies are respectively connected to the first lifting tooth 11 and the second lifting tooth 12 through a lifting chain 20.

[0009] The nut block 6 is connected to an elevator chain 21, and the slide 3 is rotatably supported with an elevator transition tooth 22 that matches the elevator chain 21. The elevator chain 21 is connected to the elevator transition tooth 22, and a hook is provided at its end. The hook is hooked on the frame of the scissor lift 23.

[0010] A pair of symmetrically distributed leg mechanisms are rotatably connected to the outer edge of the slide 3, and the leg mechanisms include a first leg 24 directly rotatably connected to the slide 3, a telescopic cylinder 25 is provided in the first leg 24, and a second leg 26 is also slidably connected in the first leg 24, and the working end of the telescopic cylinder 25 is connected to the second leg 26. A swing cylinder 27 is also hinged on the bottom end surface of the slide 3, and the working end of the swing cylinder 27 is rotatably connected to the connecting platform provided in the middle of the first leg 24, and a roller 28 is also provided at the bottom end of the second leg 26.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This type of rescue service vehicle, which can be used for lifting with a scissor lift, has a simple structure, ingenious design, and reasonable layout. It addresses the problems existing in traditional rescue service vehicles during operation by designing a special structure. A motor drives a sprocket and chain transmission pair to drive a carriage to slide back and forth within the vehicle. A specially designed lifting mechanism drives two pairs of nut blocks to move linearly in opposite directions. When the nut blocks move horizontally, the chains connected to them, under the action of the sprockets, realize the lifting and lowering of the scissor lift. After the scissor lift lands, the operator only needs to separate it from the chains and push it to the faulty vehicle for lowering. The scissor lift and its associated mechanisms in this rescue service vehicle occupy a small space, and the operation process is reliable and highly automated, effectively improving work efficiency while ensuring human safety. Furthermore, this rescue service vehicle has a simple manufacturing process and low manufacturing cost. Therefore, it can be said that it has multiple advantages and is particularly suitable for promotion and application in this field, and its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figures 1 to 4 Schematic diagram of the working process of an embodiment of the present invention.

[0014] Figure 5 It is a front view of the carriage driving portion in an embodiment of the present invention.

[0015] Figure 6 1 is a top view of the carriage driving portion in an embodiment of the present invention.

[0016] Figure 7 1 is a top view of the slide portion in an embodiment of the present invention.

[0017] Figure 8 yes Figure 7 Enlarged view of part A in .

[0018] Figure 9 It is a schematic cross-sectional view of the guide housing portion in an embodiment of the present invention.

[0019] Figure 10 2 is a schematic structural diagram of the lifting part in an embodiment of the present invention.

[0020] Figure 11 It is a structural schematic diagram of the leg mechanism part of an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 11As shown: A rescue service vehicle capable of realizing scissor lift lifting, comprising a vehicle body 1, a closed vehicle body 2 is provided at the rear of the vehicle body 1, a slide 3 is slidably connected in the closed vehicle body 2, a slide motor 4 is provided in the closed vehicle body 2, a working end of the slide motor 4 is connected to a driving shaft 5 rotatably supported at the front end of the closed vehicle body 2, and driving teeth 6 are provided at both ends of the driving shaft 5. A pair of driven teeth 7 respectively matching the two driving teeth 6 are rotatably supported at the rear end of the closed vehicle body 2, and the matched driving teeth 6 and driven teeth 7 are connected by a slide drive chain 8, and the slide drive chain 8 is connected to the slide 3 via a connecting member 9.

[0022] The slide 3 is provided with a lifting motor 10, and the working shaft of the lifting motor 10 is provided with a first lifting tooth 11 and a second lifting tooth 12. The slide 3 is also provided with a pair of symmetrically distributed lifting components, and the lifting component includes a guide housing 13 with a rectangular cross-section, and a first screw 14 and a second screw 15 are rotatably supported in the guide housing 13. A nut block 16 is threadedly connected to the first screw 14 and the second screw 15, and the cross-section of the nut block 16 is also rectangular. The ends of the first screw 14 and the second screw 15 are respectively provided with a first gear 17 and a second gear 18, and the first gear 17 and the second gear 18 are meshed with each other. The end of the first screw 14 is also provided with a screw passive tooth 19. The screw passive teeth 19 in the two lifting assemblies are respectively connected to the first lifting tooth 11 and the second lifting tooth 12 through a lifting chain 20.

[0023] The nut block 6 is connected to an elevator chain 21, and the slide 3 is rotatably supported with an elevator transition tooth 22 that matches the elevator chain 21. The elevator chain 21 is connected to the elevator transition tooth 22, and a hook is provided at its end. The hook is hooked on the frame of the scissor lift 23.

[0024] A pair of symmetrically distributed leg mechanisms are rotatably connected to the outer edge of the slide 3, and the leg mechanisms include a first leg 24 directly rotatably connected to the slide 3, a telescopic cylinder 25 is provided in the first leg 24, and a second leg 26 is also slidably connected in the first leg 24, and the working end of the telescopic cylinder 25 is connected to the second leg 26. A swing cylinder 27 is also hinged on the bottom end surface of the slide 3, and the working end of the swing cylinder 27 is rotatably connected to the connecting platform provided in the middle of the first leg 24, and a roller 28 is also provided at the bottom end of the second leg 26.

[0025] The working process of the rescue service vehicle capable of scissor lift lifting according to the embodiment of the present invention is as follows: when a vehicle breaks down and requires rescue, the rescuer drives the vehicle body 1 to the location of the broken vehicle, stops the vehicle, and sends a signal to the vehicle-mounted control system. The control system controls the operation of the carriage motor 4, which drives the driving shaft 5 and the driving gears 6 at both ends thereof to rotate, thereby driving the carriage drive chain 8 to move. The carriage drive chain 8 then pulls the carriage 3 toward the outside of the vehicle body through the connecting member 9 thereon (when the carriage 3 needs to be recovered, it is only necessary to rotate the carriage motor 4 in the opposite direction);

[0026] A timer module is provided in the control system. The timing module will start timing after the carriage motor 4 starts working, and send a signal to the control system after a preset time (such as 5s) is reached. The control system will control the two swing cylinders 27 to work synchronously at the same time, driving the two first legs 24 to swing, and the first leg 24 swings from a horizontal state to a vertical state. After the swing cylinder 27 finishes working, the control system will control the telescopic cylinder 25 to work, driving the second leg 26 to extend downward. After the telescopic cylinder 25 moves into place, the roller 28 at the bottom end of the second leg 26 contacts the ground. In the subsequent process, the leg mechanism composed of the first leg 24 and the second leg 26 will support the carriage 3. During the movement of the carriage 3, the roller 28 is always in contact with the ground and rolls; when the carriage 3 is retracted, the above action is reversed, and the leg mechanism in the deployed state is re-closed on the bottom end surface of the carriage 3;

[0027] When the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other, so when the first gear 17 and the second gear 18 are engaged with each other, the first gear 17 and the second gear 18 are engaged with each other,

[0028] Initially, the two nut blocks 16 are located in the middle of the lifting assembly. When the above-mentioned movement occurs, the two nut blocks 16 move toward the front and rear ends of the lifting assembly, respectively, so that the elevator chain 21 connected to the nut blocks 16 is gradually lowered until the scissor lift 23 is placed on the ground; the rescuer removes the hook hanging on the frame of the scissor lift 23, pushes the scissor lift 23 away, and uses it to repair the faulty vehicle;

[0029] After the maintenance work is completed, when the scissor lift 23 needs to be put back into the closed car 2, the scissor lift 23 is pushed back to the slide 3 and lowered, and the elevator chain 21 is connected to the frame of the scissor lift 23 by a hook, and the lifting motor 10 is driven to rotate in the opposite direction. The above actions are performed in reverse, that is, the two nut blocks 16 in the same lifting assembly move from both ends to the center at the same time, thereby pulling the elevator chain 21 up, and finally driving the scissor lift 23 to rise to the initial position again, and the slide 3 moves toward the inside of the closed car 2, and the leg mechanism also moves back to the folded state until the slide 3 is completely received in the closed car 2.

Claims

1. A rescue service vehicle capable of carrying out scissor lift lifting, comprising a vehicle body (1), a closed vehicle compartment (2) being provided at the rear of the vehicle body (1), and characterized in that: A carriage (3) is slidably connected in the closed carriage (2), a carriage motor (4) is provided in the closed carriage (2), a working end of the carriage motor (4) is connected to a driving shaft (5) rotatably supported at the front end of the closed carriage (2), driving teeth (6) are provided at both ends of the driving shaft (5), and a pair of driven teeth (7) respectively matching the two driving teeth (6) are rotatably supported at the rear end of the closed carriage (2), and the matched driving teeth (6) and driven teeth (7) are connected via a carriage drive chain (8), and the carriage drive chain (8) is connected to the carriage (3) via a connecting member (9). The slide (3) is provided with a lifting motor (10), and a first lifting tooth (11) and a second lifting tooth (12) are provided on the working shaft of the lifting motor (10). The slide (3) is also provided with a pair of symmetrically distributed lifting components, and the lifting components include a guide housing (13) with a rectangular cross section, and a first lead screw (14) and a second lead screw (15) are rotatably supported in the guide housing (13). A nut block (16) is threadedly connected to the first lead screw (14) and the second lead screw (15). , and the cross section of the nut block (16) is also rectangular, the ends of the first lead screw (14) and the second lead screw (15) are respectively provided with a first gear (17) and a second gear (18), and the first gear (17) and the second gear (18) are meshed with each other, and the end of the first lead screw (14) is also provided with a lead screw passive tooth (19), and the lead screw passive teeth (19) in the two lifting assemblies are respectively connected to the first lifting tooth (11) and the second lifting tooth (12) through a lifting chain (20), The nut block (16) is connected to a lift chain (21), and the slide (3) is rotatably supported with a lift transition tooth (22) matching the lift chain (21). The lift chain (21) is connected to the lift transition tooth (22), and a hook is provided at the end thereof, and the hook is hooked on the frame of the scissor lift (23). A pair of symmetrically distributed leg mechanisms are rotatably connected to the outer side of the slide (3), and the leg mechanisms include a first leg (24) directly rotatably connected to the slide (3), a telescopic cylinder (25) is provided in the first leg (24), and a second leg (26) is slidably connected in the first leg (24), the working end of the telescopic cylinder (25) is connected to the second leg (26), and a swing cylinder (27) is hinged on the bottom end surface of the slide (3), and the working end of the swing cylinder (27) is rotatably connected to a connecting platform provided in the middle of the first leg (24), and a roller (28) is also provided at the bottom end of the second leg (26).

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